Home / 86,419.20-119,313.54-70,541.40

Finding the Fourth Proportional to 86,419.20, 119,313.54 and 70,541.40

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Solution

The fourth proportional to 86,419.20, 119,313.54 and 70,541.40 is: 97,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,419.20 : 119,313.54 = 70,541.40 : x
  2. Step 2: Convert to fraction form
    86,419.20/119,313.54 = 70,541.40/x
  3. Step 3: Cross multiply
    86,419.20x = 119,313.54 × 70,541.40
  4. Step 4: Simplify right side
    86,419.20x = 8,416,544,150.56
  5. Step 5: Solve for x
    x = 8,416,544,150.56/86,419.20
  6. Step 6: Final answer
    x = 97,392.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.